States of Matterundergrad · Statesofmatter: Solid, Liquid, Gas
Predict
Experiment
Observe
Revise model
Transfer
Ready
Chemistry path
States of Matter
StudentChoose a reaction or structure mission, predict the particle-level change, run the model, then explain conservation and mechanism.TeacherLook for level-confusion, conservation errors, representation fluency, and evidence of mechanism over memorized procedure.
StatesOfMatter
band 3-5 · mission — · seed —the sealed box \u00b7 the open cup
Missions
Invariant witness
mass on the scale—
particle count—
particle diameter8 px, always
The count and the mass hold; only motion and spacing change.
0 events
A box that keeps the books
Heat it, chill it, boil it: the scale under the box and the particle count never leave the screen, so every story about matter has to answer to them. Commit a prediction before every run.